FR2489516A1 - Procede de reglage de produits chimiques au cours du traitement par un gaz de substances liquides ou en suspension, notamment de pates cellulosiques - Google Patents
Procede de reglage de produits chimiques au cours du traitement par un gaz de substances liquides ou en suspension, notamment de pates cellulosiques Download PDFInfo
- Publication number
- FR2489516A1 FR2489516A1 FR8112195A FR8112195A FR2489516A1 FR 2489516 A1 FR2489516 A1 FR 2489516A1 FR 8112195 A FR8112195 A FR 8112195A FR 8112195 A FR8112195 A FR 8112195A FR 2489516 A1 FR2489516 A1 FR 2489516A1
- Authority
- FR
- France
- Prior art keywords
- gas
- substance
- container
- measured
- density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000126 substance Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 title claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 23
- 239000000725 suspension Substances 0.000 claims abstract description 3
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 229920003043 Cellulose fiber Polymers 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000004061 bleaching Methods 0.000 abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 101100261173 Arabidopsis thaliana TPS7 gene Proteins 0.000 description 3
- GLQOALGKMKUSBF-UHFFFAOYSA-N [amino(diphenyl)silyl]benzene Chemical compound C=1C=CC=CC=1[Si](C=1C=CC=CC=1)(N)C1=CC=CC=C1 GLQOALGKMKUSBF-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000001739 density measurement Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1068—Bleaching ; Apparatus therefor with O2
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1052—Controlling the process
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
- G01N33/343—Paper pulp
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8005959A SE421019B (sv) | 1980-08-26 | 1980-08-26 | Forfarande for kemikaliereglering vid behandling av en substans, speciellt massa, med gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2489516A1 true FR2489516A1 (fr) | 1982-03-05 |
| FR2489516B1 FR2489516B1 (enrdf_load_stackoverflow) | 1983-02-11 |
Family
ID=20341598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8112195A Granted FR2489516A1 (fr) | 1980-08-26 | 1981-06-22 | Procede de reglage de produits chimiques au cours du traitement par un gaz de substances liquides ou en suspension, notamment de pates cellulosiques |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4419184A (enrdf_load_stackoverflow) |
| JP (1) | JPS5771486A (enrdf_load_stackoverflow) |
| AT (1) | AT375977B (enrdf_load_stackoverflow) |
| BR (1) | BR8104972A (enrdf_load_stackoverflow) |
| CA (1) | CA1170430A (enrdf_load_stackoverflow) |
| DE (1) | DE3129010A1 (enrdf_load_stackoverflow) |
| FI (1) | FI68870C (enrdf_load_stackoverflow) |
| FR (1) | FR2489516A1 (enrdf_load_stackoverflow) |
| NO (1) | NO156535C (enrdf_load_stackoverflow) |
| SE (1) | SE421019B (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572742A1 (fr) * | 1984-11-08 | 1986-05-09 | Rauma Repola Oy | Procede pour le controle d'un processus de blanchiment a l'oxygene de la cellulose |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946555A (en) * | 1989-01-19 | 1990-08-07 | Canadian Liquid Air Ltd./Air Liquide Canada | Apparatus and method for measuring vent gas flow rates and parameters in pulp and paper processing |
| US5883292A (en) * | 1996-01-17 | 1999-03-16 | Twenty-First Century Research Corporation | Reaction control by regulating internal condensation inside a reactor |
| US5922908A (en) * | 1996-06-24 | 1999-07-13 | Twenty-First Century Research Corporation | Methods for preparing dibasic acids |
| US6143927A (en) * | 1996-06-24 | 2000-11-07 | Rpc Inc. | Methods for removing catalyst after oxidation of hydrocarbons |
| US6288270B1 (en) | 1996-06-24 | 2001-09-11 | Rpc Inc. | Methods for controlling the reaction rate of a hydrocarbon to an acid by making phase-related adjustments |
| US6337051B1 (en) | 1996-06-24 | 2002-01-08 | Rpc Inc. | Device for detecting formation of a second liquid phase |
| US6039902A (en) * | 1996-06-24 | 2000-03-21 | Rpc Inc. | Methods of recycling catalyst in oxidations of hydrocarbons |
| US20010053864A1 (en) * | 1996-08-21 | 2001-12-20 | Decoster David C. | Devices for controlling the reaction rate and/or reactivity of hydrocarbon to an intermediate oxidation product by adjusting the oxidant consumption rate |
| AU3811597A (en) | 1996-08-21 | 1998-03-06 | Twenty-First Century Research Corporation | Methods and devices for controlling the reaction by adjusting the oxidant consumption rate |
| US5801273A (en) | 1996-08-21 | 1998-09-01 | Twenty-First Century Research Corporation | Methods and devices for controlling the reaction rate of a hydrocarbon to an intermediate oxidation product by pressure drop adjustments |
| US6103933A (en) * | 1996-11-07 | 2000-08-15 | Rpc Inc. | Methods for controlling the oxidation rate of a hydrocarbon by adjusting the ratio of the hydrocarbon to a rate-modulator |
| US5817868A (en) * | 1996-11-12 | 1998-10-06 | Twenty-First Century Research Corporation | Method and devices for controlling the oxidation of a hydrocarbon to an acid by regulating temperature/conversion relationship in multi-stage arrangements |
| SE510740C2 (sv) * | 1996-11-26 | 1999-06-21 | Sunds Defibrator Ind Ab | Styrning av syrgasdelignifiering |
| US5824819A (en) * | 1996-12-18 | 1998-10-20 | Twenty-First Century Research Corporation | Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator |
| US6037491A (en) * | 1997-07-25 | 2000-03-14 | Rpc Inc. | Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio |
| US5929277A (en) * | 1997-09-19 | 1999-07-27 | Twenty-First Century Research Corporation | Methods of removing acetic acid from cyclohexane in the production of adipic acid |
| US5908589A (en) * | 1997-12-08 | 1999-06-01 | Twenty-First Century Research Corporation | Methods for separating catalyst from oxidation mixtures containing dibasic acids |
| KR20010040818A (ko) | 1998-02-09 | 2001-05-15 | 알피시 인코포레이티드 | 탄화수소의 이염기산 산화반응 혼합물내 코발트 촉매 처리방법 |
| MXPA00008123A (es) * | 1998-02-19 | 2002-04-24 | Rpc Inc | Metodos y dispositivos para separar un catalizador a partir de mezclas de oxidacion. |
| US6433221B1 (en) | 1998-07-02 | 2002-08-13 | Rpc Inc. | Methods of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid |
| US6340420B1 (en) | 1998-07-06 | 2002-01-22 | Rpc Inc. | Methods of treating the oxidation mixture of hydrocarbons to respective dibasic acids |
| US6417128B1 (en) | 1999-04-20 | 2002-07-09 | Rpc, Inc. | Methods and replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst |
| SE526000C2 (sv) * | 2003-11-26 | 2005-06-14 | Kvaerner Pulping Tech | Metod och system för att styra tillsättning av syrgas och alkali vid syrgasdelignifiering |
| US12280518B2 (en) | 2021-09-30 | 2025-04-22 | Alliance For Sustainable Energy, Llc | Wood template-supported phase change composite for thermal energy applications |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745065A (en) * | 1971-09-07 | 1973-07-10 | Cons Paper Inc | Control of chlorine dioxide bleaching |
| FR2212461A1 (en) * | 1973-01-03 | 1974-07-26 | Kamyr Inc | Paper pulp prodn from wood fibre - in which pulp density, liquid fraction density, and pulp flow rate are monitored |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3832276A (en) * | 1973-03-07 | 1974-08-27 | Int Paper Co | Delignification and bleaching of a cellulose pulp slurry with oxygen |
| US4093511A (en) * | 1973-08-27 | 1978-06-06 | Kamyr Aktiebolag | Apparatus for oxygen bleaching of pulp including recirculation of exhaust gases |
| US3951733A (en) * | 1974-11-06 | 1976-04-20 | International Paper Company | Delignification and bleaching of wood pulp with oxygen |
| SE415580C (sv) * | 1977-05-11 | 1984-10-15 | Mo Och Domsjoe Ab | Forfarande for reglering av tillforseln av reaktionskemikalier vid delignifiering av cellulosamaterial |
| SU702087A1 (ru) * | 1977-07-11 | 1979-12-05 | Ленинградский Ордена Трудового Красного Знамени Технологический Институт Им. Ленсовета | Устройство дл измерени степени делигнификации целлюлозы в варочных котлах периодического действи |
| US4220498A (en) * | 1978-12-14 | 1980-09-02 | Kamyr, Inc. | Oxygen reactor systems pulp reject treatment |
| US4259150A (en) * | 1978-12-18 | 1981-03-31 | Kamyr Inc. | Plural stage mixing and thickening oxygen bleaching process |
| US4239590A (en) * | 1979-01-11 | 1980-12-16 | Kamyr, Inc. | Method of maintaining uniformity of fibrous material fed to a continuous digester |
-
1980
- 1980-08-26 SE SE8005959A patent/SE421019B/sv not_active IP Right Cessation
-
1981
- 1981-06-03 NO NO811871A patent/NO156535C/no unknown
- 1981-06-22 FI FI811942A patent/FI68870C/fi not_active IP Right Cessation
- 1981-06-22 FR FR8112195A patent/FR2489516A1/fr active Granted
- 1981-07-20 US US06/284,815 patent/US4419184A/en not_active Expired - Lifetime
- 1981-07-22 DE DE19813129010 patent/DE3129010A1/de not_active Ceased
- 1981-07-31 BR BR8104972A patent/BR8104972A/pt not_active IP Right Cessation
- 1981-08-18 CA CA000384073A patent/CA1170430A/en not_active Expired
- 1981-08-19 AT AT0362381A patent/AT375977B/de not_active IP Right Cessation
- 1981-08-26 JP JP56132645A patent/JPS5771486A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745065A (en) * | 1971-09-07 | 1973-07-10 | Cons Paper Inc | Control of chlorine dioxide bleaching |
| FR2212461A1 (en) * | 1973-01-03 | 1974-07-26 | Kamyr Inc | Paper pulp prodn from wood fibre - in which pulp density, liquid fraction density, and pulp flow rate are monitored |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572742A1 (fr) * | 1984-11-08 | 1986-05-09 | Rauma Repola Oy | Procede pour le controle d'un processus de blanchiment a l'oxygene de la cellulose |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325118B2 (enrdf_load_stackoverflow) | 1988-05-24 |
| NO156535B (no) | 1987-06-29 |
| FI68870B (fi) | 1985-07-31 |
| FI68870C (fi) | 1985-11-11 |
| ATA362381A (de) | 1984-02-15 |
| JPS5771486A (en) | 1982-05-04 |
| FI811942L (fi) | 1982-02-27 |
| FR2489516B1 (enrdf_load_stackoverflow) | 1983-02-11 |
| DE3129010A1 (de) | 1982-05-13 |
| NO811871L (no) | 1982-03-01 |
| NO156535C (no) | 1987-10-07 |
| AT375977B (de) | 1984-09-25 |
| SE421019B (sv) | 1981-11-16 |
| BR8104972A (pt) | 1982-04-20 |
| CA1170430A (en) | 1984-07-10 |
| US4419184A (en) | 1983-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |